#1 Chicago General Contracting Contractor: Pegasus Construction
Finding the right contractor to build an addition on your Mundelein home can be a challenge. It’s important to thoroughly vet and interview your options before deciding who to hire.
To ensure that you find a contractor that meets your needs and budget expectations, download our free 3-Step Guide to Choosing A Remodeling Contractor.
Whether you decide to hire our team at Pegasus Construction or another local remodeler, you can use this helpful guide to be confident knowing you have your bases covered.
A successful home remodel starts with a clear plan. With hundreds of satisfied Mundelein customers, our proven 6-Step Design-Build Process ensures a smooth and stress-free remodeling experience.
1 in 3 remodels exceed their budget—but yours doesn’t have to. At Pegasus Construction, we’ve created a budgeting system to eliminate surprise costs, with our projects averaging just a 5% variance from the initial budget to the final price.
Feel confident knowing your home remodel is managed by experts. Each project is assigned a dedicated team, led by an experienced master carpenter, ensuring timely completion. While other companies face delays of weeks or months, our projects average less than a 2-day difference from the original schedule.
Mundelein is a growing Lake County village, with ranches, split-levels, and 1980s–2000s subdivision homes. We remodel Mundelein homes with craftsmanship suited to these homes, opening and modernizing the space while respecting its original construction, and we handle the Village of Mundelein permitting from start to finish.
If you find yourself needing more living space and want to expand your home rather than upsize, a single-level addition is the place to start.
The most cost-effective way to add living space, a single-level addition attaches to the side of the home. They typically require expanding the home’s foundation, and are most often used for expanding kitchens, living rooms, or home offices.
Single-level additions are typically limited by lot size and setback laws. For this reason, these additions are better fit for homes on larger lots.


Want to expand your home without expanding its footprint? Many homeowners don’t realize it’s possible to expand their living space by adding a second story.
Although often more expensive than single-level additions, second-story additions can be a great solution for homeowners who need additional living space but don’t have enough yard space to build out.
Second-story additions tend to be more technically challenging, as they require extensive engineering and planning to ensure that they don’t disrupt the design or aesthetic of the existing structure.
For some homeowners, a basement addition is the best way to expand their living space. This often involves either raising the home or digging out the crawl space.
Homeowners who go this route often use their basement for additional bedrooms, a recreational space, or an Accessory Dwelling Unit (ADU).
Basement additions are among the most expensive methods of adding onto a home. Extensive manual labor, planning, and permitting all contribute to the high cost of basement additions.

At Pegasus Construction our mission is to change the lives of homeowners by helping them expand their homes with custom home additions built just for them. However, we also recognize that not every home addition project is the right fit for our team. Here is how to tell if Pegasus Construction is or isn’t a good fit for your home addition project.
Schedule an advisory call with a Design Consultant
Invite us to your home for an initial evaluation
Align on a budget and meet to discuss the design
Hear that this client had to say!
“…I felt truly heard and valued during our conversation. I came to your company with questions about our projects, and Greg provided thoughtful, flexible scenarios and options to help us achieve our goals. He genuinely seemed to care about me and my family as real people.”
Yes. In Mundelein, a home addition that involves structural changes, plumbing, or electrical work requires a permit from the Village of Mundelein. We handle the application, drawings, and inspections.
In Mundelein, a home addition typically runs $250 to $425 per square foot. After the design phase we provide a fixed, line-item budget.
Most home addition projects in Mundelein take several weeks plus Village of Mundelein permit time. We give you a clear schedule up front and manage the local process.
Yes. We match cabinetry, trim, masonry, and finishes to your home’s era and style so the remodel looks original, which matters for resale in Mundelein.
In Mundelein’s older homes we often uncover dated wiring, original plumbing, or structural quirks during demolition. We flag anything immediately and fold the fix into the plan.
We know Mundelein homes — ranches, split-levels, and 1980s–2000s subdivision homes — handle the Village of Mundelein permitting, and give you a fixed budget and schedule with one accountable team. Book a free design consultation to start.
Choosing the right contractor for your remodel can be simple. Use our free guide to walk you through 3 easy steps to select the perfect contractor.